Question

Factors of y(y-2)+9 (z-y)
are​

Answer 1

→ y² - 2y + 9z- 9y

→ y² - 11y + 9z = 0

→ can't be factories beacuse we can't arrange the factors no. of 9 { 3,3 } to make 11.

BUT WE CAN DO ONE MORE PROCESS:

Y =- b +- ✓ b² - 4 ac

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2a